Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
Which process removes carbon dioxide from the atmosphere?
photosynthesis
respiration
combustion
decomposition
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What are the products of photosynthesis?
glucose and water
carbon dioxide and water
carbon dioxide and oxygen
glucose and oxygen
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How do animals obtain carbon for building their own fats, proteins, and carbohydrates?
by carrying out photosynthesis
by absorbing carbon from the soil
by breathing in carbon dioxide
by eating plants or other animals
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What is the equation for respiration?
carbon dioxide + water → glucose + oxygen
glucose + water → carbon dioxide + oxygen
carbon dioxide + oxygen → glucose + water
glucose + oxygen → carbon dioxide + water
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Which organisms break down dead remains and release carbon dioxide during decomposition?
plants
animals
fungi
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What happens when humans burn fossil fuels?
carbon dioxide is released into the atmosphere
carbon dioxide is removed from the atmosphere
glucose is produced
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What is the primary source of carbon for plants during photosynthesis?
oxygen
water
glucose
carbon dioxide
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What are the reactants in the photosynthesis equation?
carbon dioxide and oxygen
glucose and water
carbon dioxide and water
glucose and oxygen
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What are the organisms that break down dead plant and animal remains, releasing carbon dioxide back into the atmosphere?
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Name three main processes that return carbon dioxide to the atmosphere in the carbon cycle.
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